Review on Microstructure and Properties of 45 Steel under High-Temperature Tempering. Frontiers in Engineering, [S. l.], v. 1, n. 3, p. 27–32, 2026. DOI: 10.63313/FE.9014. Disponível em: https://academics.erytis.com/index.php/fe/article/view/651. Acesso em: 21 jul. 2026.